Oh, how rare are the Christians who speak with a tender heart and have a theological backbone of steel.

I dream of being one someday, and I long to be used by God in the ministry to produce such fruit. Oh, for Christians and pastors whose might in the truth is matched by their meekness. Whose theological acumen is matched by their manifest contrition. Whose heights of intellect are matched by their depths of humility. Yes, and the other way around! - whose relational warmth is matched by their rigor of study, whose bent toward mercy is matched by the vigilance of their biblical discernment, and whose sense of humor is exceeded by the seriousness of their calling.

John Piper, The Roots of Endurance